A.less and have less strength
B.more and have less strength
C.more and have greater strength
D.less and have greater strength
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A.number of fishhooks
B.kink in the line
C.50% loss of efficiency of the line
D.increase in deterioration of the line
A.the eye of the second line is dipped
B.the mooring lines are doubled
C.the bollard has two horns
D.one of the lines is a breast line
A.take the wear should the towline drag bottom
B.assure that if the towline is overstressed it will part close to the bridle
C.prevent the towline from whipping should it part
D.put spring in the towline
A.passes over the stern of the towing vessel
B.passes through chocks
C.is attached to the disabled vessel
D.All of the above
A.cotton
B.hemp
C.manila
D.sisal
最新試題
When cutting wire rope，seizings are put on each side of the cut.The seizings prevent the wire from unlaying and also（）.
The tackle that raises and lowers the boom is（）.
The use of（）between bags may lead to chafe and tearing of the bags.
The square knot is used for（）.
What is meant by the term two-blocked（）.
Which material should NOT be used to secure cargo on deck for a voyage（）.
What material may be substituted for zinc when making a poured metal socket ending to a wire rope（）.
When securing a hook to the end of a wire rope you should use（）.
When riveted joints occur at the ends of plating they are called（）.
When passing a hawser to the dock you would first use what line（）.